The 12.7mm 57-BZT-542M cartridge with modernized BZT-44M armor-piercing incendiary tracer bullet is used against enemy personnel, soft-skinned ground and low-flying targets as well as for target designation and fire adjustment when fired from 12.7mm machine guns, except the YakB-12.7mm machine gun, at temperatures from -50 to +50 °C.

Principales características

Caliber, mm

12,7

Max weight, g:

cartridge

132

bullet

44,8

Cartridge length, mm

147

Average bullet velocity V25, m/s

810-825

Probability of penetrating a 15mm thick armor plate at 100 meters, not less than, %